Outdoor grounding switches, manufactured by the «SVEL» Group, are designed to ground the neutrals of power transformers lacking earth fault protection. Their use ensures personnel safety from electric shock and prevents equipment damage.

Main technical characteristics:

• Rated voltage: 110 kV.
• Maximum operating voltage: 126 kV.
• Rated current: 400 A.
• Rated electrodynamic withstand current: 15.75 kA.
• Rated thermal withstand current: 6.3 kA (duration — 3 s).
• Grounding switch weight: not more than 165 kg.
• Drive type: manual or motorized.

Design features:

• All components are domestically produced, ensuring quality assurance.
• Steel parts have durable anti-corrosion coatings per GOST 9.303.
• Lamellar and grounding contacts feature electroplated coatings, enhancing corrosion resistance and reducing resistance.
• The grounding switch and drive can be mounted on any support without affecting the kinematics of moving parts.

Operating conditions:

• Climatic version: U and UHL, placement categories 1–3 per GOST 15150.
• Temperature range: from -60 °C to +40 °C.
• Resistant to icing (ice layer thickness up to 20 mm) and wind (speed up to 40 m/s).
• Protection degree: IP55 per GOST 14254.
• Installation height: up to 1000 m above sea level.